The theory of separation of powers was first time clearly formulated by __________

The theory of separation of powers was first clearly formulated by Baron de Montesquieu. Baron de Montesquieu was a French political philosopher who lived in the 18th century. He is best known for his book "The Spirit of the Laws," which was published in 1748. In this book, Montesquieu outlined the idea of the separation of powers, which is the concept that the powers of government should be divided among different branches, each with its own distinct responsibilities and areas of authority. The theory of separation of powers proposes that there should be a clear division of powers between the legislative, executive, and judicial branches of government. This division of powers helps to prevent any one branch from becoming too powerful and helps to ensure that the different branches can check and balance each other, leading to a more representative and effective government. Montesquieu's ideas on the separation of powers have been highly influential in shaping modern constitutional systems and are still widely studied and discussed today. For this reason, he is often considered to be the first person to clearly formulate the theory of separation of powers.